Skin depth and resistance calculator for a given frequency and the materials silver (Ag), copper (Cu) and stainless steel (Type V4A). Input: Frequency in MHz, wire diameter in mm Output: Skin depth and resistance per meter The skin depth is always calculated for above materials. The resistance is only calculated in case there is a significant skin effect (i.e. skin depth is significantly smaller than the wire radius). For detailed information on the skin effect please refer to http://en.wikipedia.org/wiki/Skin_effect .